import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
    // baseURL: '/api/', // url = base url + request url
    baseURL: process.env.NODE_ENV === 'production' ? process.env.VUE_APP_BASE_API : '/api/', // api 的 base_url
    // withCredentials: true, // send cookies when cross-domain requests
    // timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
    config => {
        // do something before request is sent
        if (store.getters.token) {
            // let each request carry token
            // ['X-Token'] is a custom headers key
            // please modify it according to the actual situation
            config.headers['Authorization'] = "Bearer " + getToken()
        }
        return config
    },
    error => {
        // do something with request error
        console.log(error) // for debug
        return Promise.reject(error)
    }
)

// response interceptor
service.interceptors.response.use(
    /**
     * If you want to get http information such as headers or status
     * Please return  response => response
     */

    /**
     * Determine the request status by custom code
     * Here is just an example
     * You can also judge the status by HTTP Status Code
     */
    response => {
        const res = response.data
        // if the custom code is not 20000, it is judged as an error.
        if (res.code !== 200) {
            if(res.code === 300){
                Message({ message: res.message, type: 'error', duration: 5 * 1000 })
            }else if(res.code === 401){
                // to re-login
                MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
                    confirmButtonText: 'Re-Login',
                    cancelButtonText: 'Cancel',
                    type: 'warning'
                }).then(() => {
                    store.dispatch('user/resetToken').then(() => {
                        location.reload()
                    })
                })
            }
            else{
                Message({ message: '请求失败，请稍后再试', type: 'error', duration: 5 * 1000 })
            }
            return Promise.reject(new Error(res.message || 'Error'))
        } else {
            return res
        }
    },error => {
        console.log('err' + error) // for debug
        Message({ message: '请求失败，请稍后再试', type: 'error', duration: 5 * 1000 })
        // Message({ message: error.message, type: 'error', duration: 5 * 1000 })
        return Promise.reject(error)
    }
)

export default service
